新东方网英语四级频道为备考英语四级的同学整理了英语四级词汇讲解及考点归纳,希望可以为大家带来帮助,一起来学习一下吧。
英语四级词汇讲解丨考点归纳:be supposed to
They are supposed to be here by now
四级词汇讲解:
被动语态在英语里使用频繁,通常表示主动含义,这与中国人的思维习惯相去甚远,考生须多加练习。这句话的意思是“他们现在应该到这儿了。”
英语四级考点归纳:
be supposed to的用法如下:
※ be supposed to的主语是sb.时,意为“应该;被期望”,可以用来表示劝告、建议、义务、责任等,相当于情态动词should。
如:Teachers are supposed to treat all the students alike.老师应该对所有的学生一视同仁。
※ 当be supposed to的主语是sth.时,意为“本应,本该”,用于表示“某事本应该发生而没有发生”。
如:The train was supposed to arrive an hour ago.火车本应在一小时之前到达。
※ 当be supposed to后接“have+过去分词”时,表示“本应该做某事而没做”。
如:Yau are supposed to have handed in your homework by now.现在你应该已经把作业交上来了。
※ be supposed to的否定结构为be got supposed to,用于口语中,意为“不被许可;不应当”。
如:She was not supposed to be angry about that.她本不该为那件事而生气的。
From:https://www.zgghmh.com/CET-4/20004329.asp